High-efficiency perovskite solar cells prepared by using a sandwich structure MAI-PbI2-MAI precursor film

doi:10.1039/c6nr07689k

CORC > 合肥物质科学研究院 > 中国科学院合肥物质科学研究院 > 应用技术研究所

	High-efficiency perovskite solar cells prepared by using a sandwich structure MAI-PbI2-MAI precursor film
	Zhang, Xuhui 1,2; Ye, Jiajiu 1,2; Zhu, Liangzheng 1,2; Zheng, Haiying 1,2; Liu, Guozhen 1,2; Liu, Xuepeng 1,2; Duan, Bin 1,2; Pan, Xu 1; Dai, Songyuan 3
刊名	NANOSCALE
	2017-04-14
卷号	9 期号:14 页码:4691-4699
DOI	10.1039/c6nr07689k
文献子类	Article
英文摘要	Two-step deposition has been widely used in the perovskite layer preparation for perovskite solar cells due to its attractive morphology controllability. However, the limited diffusivity of CH3NH3I (MAI) might cause some PbI2 to remain in the perovskite film. The residual PbI2 in the perovskite film would lead to inferior performance of devices, such as, low power conversion efficiency (PCE), poor reproducibility and weak air stability. In this work, we developed a sandwich structure MAI-PbI2-MAI precursor film to prepare a PbI2-free CH3NH3PbI3 perovskite film. In comparison to the two-step approach, the MAI-PbI2-MAI precursor film with a typical sandwich structure formed a uniform and pinhole-free perovskite film without any PbI2 residue, which could significantly improve the performance of the devices. Moreover, the bottom MAI layer of the MAI-PbI2-MAI precursor film could improve the interfacial contact of the porous TiO2 layer, leading to the promotion of the charge transfer and reduction of the recombination rate. Therefore, the devices fabricated from the sandwich structure MAI-PbI2-MAI precursor films showed dramatic improvements of open-circuit voltage (Voc), short-circuit current density (Jsc), fill factor (FF) and PCE. As a result, a promising PCE of 17.8% with good long-term air stability was achieved for the MAI-PbI2-MAI precursor film based PSC, which is better than that prepared by a two-step approach.
WOS关键词	SEQUENTIAL DEPOSITION ; CHARGE-SEPARATION ; PERFORMANCE ; INTERFACE ; DYNAMICS ; PASSIVATION ; GROWTH
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
WOS记录号	WOS:000398954800008
资助机构	National High Technology Research and Development Program of China(2015AA050602) ; National High Technology Research and Development Program of China(2015AA050602) ; National High Technology Research and Development Program of China(2015AA050602) ; National High Technology Research and Development Program of China(2015AA050602) ; National Natural Science Foundation of China(21273242) ; National Natural Science Foundation of China(21273242) ; National Natural Science Foundation of China(21273242) ; National Natural Science Foundation of China(21273242) ; State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources(LAPS14012) ; State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources(LAPS14012) ; State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources(LAPS14012) ; State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources(LAPS14012) ; National High Technology Research and Development Program of China(2015AA050602) ; National High Technology Research and Development Program of China(2015AA050602) ; National High Technology Research and Development Program of China(2015AA050602) ; National High Technology Research and Development Program of China(2015AA050602) ; National Natural Science Foundation of China(21273242) ; National Natural Science Foundation of China(21273242) ; National Natural Science Foundation of China(21273242) ; National Natural Science Foundation of China(21273242) ; State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources(LAPS14012) ; State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources(LAPS14012) ; State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources(LAPS14012) ; State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources(LAPS14012)
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/32958]
专题	合肥物质科学研究院_应用技术研究所
作者单位	1.Chinese Acad Sci, Inst Appl Technol, Key Lab Novel Thin Film Solar Cells, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China 3.North China Elect Power Univ, State Key Lab Alternate Elect Power Syst Renewabl, Beijing 102206, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Xuhui,Ye, Jiajiu,Zhu, Liangzheng,et al. High-efficiency perovskite solar cells prepared by using a sandwich structure MAI-PbI2-MAI precursor film[J]. NANOSCALE,2017,9(14):4691-4699.
APA	Zhang, Xuhui.,Ye, Jiajiu.,Zhu, Liangzheng.,Zheng, Haiying.,Liu, Guozhen.,...&Dai, Songyuan.(2017).High-efficiency perovskite solar cells prepared by using a sandwich structure MAI-PbI2-MAI precursor film.NANOSCALE,9(14),4691-4699.
MLA	Zhang, Xuhui,et al."High-efficiency perovskite solar cells prepared by using a sandwich structure MAI-PbI2-MAI precursor film".NANOSCALE 9.14(2017):4691-4699.